Shuai LI, Lei ZHANG. Theoretical Calculation of Emission Properties of CuInS2/ZnS Quantum Dot Fiber. [J]. Chinese Journal of Luminescence 41(11):1403-1410(2020)
DOI:
Shuai LI, Lei ZHANG. Theoretical Calculation of Emission Properties of CuInS2/ZnS Quantum Dot Fiber. [J]. Chinese Journal of Luminescence 41(11):1403-1410(2020) DOI: 10.37188/CJL.20200229.
Theoretical Calculation of Emission Properties of CuInS2/ZnS Quantum Dot Fiber
/ZnS quantum dot optical fibers(QD-OFs) were theoretically calculated under the two-level system approximation
and the transmission of QD emission along the optical fiber was obtained under different QD fluorescence lifetime
Stokes shift and absorption-emission cross section(AECS). The results showed that when the three parameters were fixed
the emission intensity of QD-OFs increased with the increasing fiber length
but all of them eventually tended to saturation or decreased. When the fiber length was fixed
the relative intensity of the fiber emission was changed by 7.1
10.52 and 2.8 for each change of the fluorescence lifetime
Stokes shift and AECS by 1 time. Therefore
Stokes shift had the greatest influence on the OF emission intensity
followed by the fluorescence lifetime
and the least influence was the AECS. However
the AECS had the greatest influence on the spectral peak position. In the 80 cm OF
the spectral redshift was 5.36 nm when the AECS increased by 1 time. The variation trend of emission intensity with fiber length calculated by theory accorded with the experimental data in the literature. This paper provides a practical method for the selection of doped materials in QD-OFs.
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